Abstract
An ideal waverider has an infinite sharp leading edge, which causes difficulty for manufacture and aerothermal protection. Therefore, the leading edge of the waverider must be blunted. For this purpose, a parametric method for blunting the leading edge of the waverider is proposed here, which can fulfill the goals of setting a leading-edge blunt radius, achieving geometric continuity, and realizing the parametric design. First is the blunting procedure of the proposed method incorporating the construction of two-dimensional blunt curves and the integration of these curves on a three-dimensional waverider configuration. Second, waveriders blunted with different geometric continuities are built with corresponding computing grids generated. Numerical methods are then introduced and validated by the benchmark cases. Finally, results from these blunted configurations are presented and compared in terms of their geometric and flow characteristics. It shows that the proposed method has a better performance in the head region of the waverider and is thereby more suitable for the practical design.
Highlights
The waverider constitutes one of the most promising configurations for hypersonic flight owing to its superior aerodynamic performance and finds applications in various fields
As for the second issue, it is common to parameterize the waverider by the characteristic profile curves, which include the upper/lower surface profile curve (USPC/LSPC), the leading edge profile curve (LEPC) or its projection, the shock wave profile curve (SWPC), and the hybrid design of these curves [17, 18]
A parametric method for blunting the three-dimensional hypersonic waverider is proposed in this paper
Summary
The waverider constitutes one of the most promising configurations for hypersonic flight owing to its superior aerodynamic performance and finds applications in various fields. The first concerns designing a single flow field or assembling multiple flow fields Research objects of the former include flows over wedges [2, 3], cones [4,5,6,7,8], constricting ducts [9], and other three-dimensional base bodies [10, 11]. For the latter, parts from similar flow fields are assembled to achieve a larger design space.
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